twapaw

Opes WP Ads Manager is a simple plugin that allows you to show advertisements as a widget on the website
 Just works! 
Major features in Opes WP Ads Manager include:
<ul>
<li>Since version 1.2.0 only one widget can be add and only two ads can be shown</li>
<li>An ad as a custom post type</li>
<li>An every ad can link to specific web page</li>
<li>A widget generator</li>
<li>A custom post featured image used as an ad</li>
<li>Ad sizes management (use Regenerate Thumbnails plugin to extend management of the sizes image files)</li>
</ul>
PRO Version (available soon) features:
<ul>
<li>Stats</li>
<li>Not limited widgets and ads can be add</li>
<li>Management of order of ads in a widget</li>
</ul>

Opes WP Ads Manager

Opes WP Ads Manager allows you to show advertisements on the website

Kal Ström

henrikmelin

valentinas

This is fork of Ad-minister, which was created by henrikmelin and kalstrom, but is no longer maintained. This version contains minor fixes, which makes it possible to use on WordPress 3.0x. Also it has improved install.
TODO:
<ul>
<li>Fix impressions and clicks counter</li>
<li>Change the way it stores data (now it uses post meta, which is wrong way, should use update_option/get_option)</li>
<li>Add proper menu – STARTED!</li>
<li>Porto to custom post type</li>
</ul>
wp-ad-manager is a plugin that adds a easy to use WordPress management system for adverts and other static content. It features:
<ul>
<li>Ad-rotation (with content having different page-view percentages)</li>
<li>Schedueling (including multiple time periods)</li>
<li>Widget compatible, easily create widgets in which to put your ads</li>
<li>Track impressions and clicks of each ad</li>
<li>Statistic available in template (e.g. for advertiser, on a password protected page)</li>
<li>Optional wrapper code for each position</li>
<li>Automatic setup</li>
</ul>

WP-Ad-Manager

A complete system for handling advertising, including ad-rotation (with weights), scheduling and support for theme widgets.

Opes WP Ads Manager vs WP-Ad-Manager